
// Copyright 2016 Proyectos y Sistemas de Mantenimiento SL (eProsima).
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef _FASTDDS_LOG_LOG_HPP_
#define _FASTDDS_LOG_LOG_HPP_

#include <functional>
#include <memory>
#include <gmock/gmock.h>

/**
 * eProsima log mock.
 */

#define logInfo(cat,msg)                                                                                \
    {                                                                                                   \
        NulStreambuf null_buffer;                                                                       \
        std::ostream null_stream(&null_buffer);                                                         \
        null_stream << msg;                                                                             \
    }

#define logWarning(cat,msg) logInfo(cat,msg)
#define logError(cat,msg) logInfo(cat,msg)

class NulStreambuf : public std::streambuf
{
protected:
    int overflow(int c) { return c; }
};

namespace eprosima {
namespace fastdds {
namespace dds {

class LogConsumer
{
    public:

        virtual ~LogConsumer() {}
};

class Log
{
    public:

        static std::function<void(std::unique_ptr<LogConsumer>&&)> RegisterConsumerFunc;
        static void RegisterConsumer(std::unique_ptr<LogConsumer>&& c) { RegisterConsumerFunc(std::move(c)); }

        static std::function<void()> ClearConsumersFunc;
        static void ClearConsumers() { ClearConsumersFunc(); }
};

using ::testing::_;
using ::testing::Invoke;
class LogMock
{
    public:
        // r-value support for mocked function.
        void RegisterConsumer(std::unique_ptr<LogConsumer>&& p)
        {
            RegisterConsumer(p);
        }

        MOCK_METHOD1(RegisterConsumer, void(std::unique_ptr<LogConsumer>&));

        MOCK_METHOD0(ClearConsumers, void());
};

} // namespace dds
} // namespace fastdds
} // namespace eprosima

#endif // _FASTDDS_LOG_LOG_HPP_
